C. see / have finally replied / have been waiting
Feedback 1. When we use 'see' in the meaning of 'ability to see with our eyes' we use it in the form of the Present Simple. 2. When we see in the present the result of the action which started in the past and continued up to the certain moment in the present we use the Present Perfect tense. 3. We use the Present Perfect Continuous to emphasize the duration of the action which started in the past and continues up to the present.